(2S,6S)-3,3-Dimethyl-7-oxo-6-phenylsulfanyl-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzyl ester 、
乙醛 在
正丁基锂 作用下,
生成 (2S,6R)-6-((S)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-6-phenylsulfanyl-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzyl ester